freshwater copepod or cyclops sp., vintage engraving

ancient animal antique aquatic art arthropoda artwork bioindicator biology black copepod copepoda crustacea crustacean cyclopidae cyclopoida cyclops drawing ecological ecology engraved engraving etching fauna freshwater illustration indicator life maxillopoda microbiology microorganism microscopic microscopy monoculus nature nauplii nauplius old picture plankton planktonic small vector vintage white wildlife zoology zooplankton